Versatile test gear that generates sine, square and triangle-wave outputs, with controllable amplitude.

One of the most useful facilities in the electronic experimenter’s workshop is an ability to generate AC test signals of various waveforms, frequencies, and amplitudes. This is where this Function Generator project comes in, the “function” in the name referring to the waveform of its output signal.

This Generator can be used for testing or driving many circuits, from below audio up to a couple of hundred kilohertz, and may even be used as a variable speed clock for logic circuit testing. It has sine, square and triangle-wave outputs plus a separate 0V to +5V squarewave output for logic driving. This may also be used with a “sync” input when, for example, inspecting low-level signals on an oscilloscope.